Leveling-machine.



E. E. WINKLEY.

LEVELING MACHINE.

APPLICATION FILED MAY 8. VHHG.

Patentefpt. 4, 1917.

2 SHEETS-SHEET maeee,

E. E. WINKLEY.

Patented Sept. 4,1917.

2 SHEETSf-SHEET 2.

` nir i PATNT 1E@ ERAS'IUS E. WINKLEY, OF LYNN, YIVIASSACI-IUSE'ILTS,` ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OFPATERSON, NEW JERSEY, A CORPORATION 0F NEW JERSEY. y v

ressens.

Application inea May s, 191e.

To all whom t may concern:

Be it known that I, ERas'rUs'E. l/VINKLEY, a citizen of the United States, residingat Lynn, in the county `of Essex `and State of Massachusetts, have invented certain new and useful Improvements in Leveling-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which Vit appertains to make and use the same.

The present invention relates to sole'levcling machines and more particularly to machines of this type provided with a shoe supporting jack and a coperating leveling roll which are moved relative to one another to cause the roll to traverse lengthwise of the shoe sole. v

In certain styles of shoes the ball portion ofthe sole is separated from the shankby a well-defined ball line which may consist of a single straight or curved line extending entirely across the sole, or of a broken line consisting of two straight or curved lines extending from the opposite margins of the sole and meeting in the central portion of the sole.

rlhe object of the present invention is to provide a leveling .machine embodying a shoe supporting jack-and cooperating leveling roll which has an improved modelof operation to enable `the shoe soles above described to be properly leveled `without destroying or obliterating the ball line.

`lVith this object in view, a feature ofthe invention consists in the provision, in a machine of this type having a leveling roll, of mechanism for `inclining the. roll relative to the direction of travel of the .roll lengthwise of the shoe to position the axis of the roll substantially parallel with that `portion of the ball line whichis engaged by the roll as 4it passes thereover.

AStill ifurther featuresof the invention convsistin certain `novel features of construction, combinations, and v arrangements of parts hereinafter described land claimed, the 1advantagesof which will be obvious ltothose skilled in the art from the following description.

In `the accompanyingdrawings illustratinggthe preferred form ofthe invention, Figure 1 represents aside elevation of a leveling machine-.embodying the present "invention; Fig. 2 `is a detail illustrating a par.

fLEvnLIN'G-Ivracnivn.

Specification ofLetters Patent.

Patented sept. i, iai t. Serial No. 96,076.

tial top plan viewof the machine and showing the mechanism `for supporting and actuating the leveling roll; llig. 3 is a detail showing a side elevation, partly in section, of a portion of the mechanism for inclining the roll,- and Fig. a is a view illustrating the position of the roll with the axis parallelto the ball line, ball line at one side of the Vshoe sole. v

The present invention is conveniently embodied in a leveling machine of the type shown and described in the patent to Winkley No. 555,518, dated March 3, 1896. This machine comprises a frame 1 having a shoe supporting jack 2 fulcrumed at 3 and oscillated .through the usual mechanism comprising a depending arm 5, connecting rod 6,

and rotary cam mounted upon the cam shaft shown. Vith this construction the relative longitudinal position of the roll and jack are changed by the oscillatory movement of the jack and the relative lateral inclination of the roll and jack are variedthroughgthe swiveling movements of the head upon the roll carrying bed. `The machine is of the usual twin type having a pair of slice supporting jacks and cooperating rolls and in the drawings only so'mucli of the twin machine is shown as applies to the present invention.

It is desirable that shoe soles in `which the ball line is characterized by a sharp brealc in the sole shall be `leveled upon machines embodying a leveling roll. To this end, mechanism is providedV for inclining the roll relative to the direction of travel lengthwise of the shoe sole to position the roll with the axis of rotation substantially parallel to that portion of the ball lineengaged by the roll when passing thereover. "In the illustrated embodiment of the invention the roll is shown asoperatingupon a sole having what is known as a cottage shanl-" in which the median lineof :the shank is denoted by a sharp ridgeextending when passing' over thel lengthwise of theshank and the ball line j is denoted by two intersecting straight lines inclined to one another to form a V having its vapex at the junction of the ball line and median line Vof the shank. In the present type Vof machine the leveling roll is caused to traverse lengthwise of the sole and to bear successively upon opposite sides of the sole. In order to position the `leveling roll with the axis parallel to the respective portion of the `ball line with which the roll engages, the roll is gradually inclined when passing down one side of the shoe solefrom `the toe until it assumes a. position in which the axis is parallel to the ball line on that side of the sole. This position is maintained during the time that the leveling roll is traversing back and forth over the ball line, and as the roll is returned toward the toe, it is gradually straightened. When passing down the opposite side of the shoe sole the roll is inclined in the opposite direction until it assumes a position with the axis substantially parallel to the ball line upon that side of the shoe sole. According to this mode of operation the shoe sole is properly leveled throughout all portions of its length without obliterating the ball line or destroying the characteristic appearance.

The leveling roll 10 is supported `at its opposite ends upon slides 2O and 21, respectively connected by a yoke 19 and slidingly supported in slideways formed in opposite sides ofthe roll carrying head 11 to permit i the usual vibratory movement of the leveling roll. The slides are connected to the vibrating member 15 through a transverse lever 22 `fulcrurned midway between its ends upon a vertical stud 23, projecting from 'a head 24 secured t-o the end of the member 15, as shown clearly in Fig. 3. The slides and 21 are connected, respectively, to opposite ends of the-lever 22 through linlrs 25 and 26. This construction serves as a connection for causing the vibratory movement of the member 15 tobe imparted to the leveling roll. In order tov position the-roll with the aXis of rotation inclined `to the direction of travel, the slides 20 and 21 are provided with curved faces and are moved relative to one another in the slideways through the links 25 and 26. To this end, mechanism is provided for controlling the position of the slides by an angular movement of the lever 22. The lever 22 is provided with an arm extending therefrom tov form a 3-arm bell-crank, as shown clearly in the drawings. The arm 30 is operatively connected with a head 32 slidingly supported `upon a transverse guide rod 33 secured at its opposite ends in the roll carrying-head 11. The head 32 is provided with a guideway 35 in theunder face which receives a guide roll 36 journaled upon the free `end `of the larm 30to permit reciprocating movethe upper portion of the head l1 and having one arm 39 operatively connectedV with the `head 32, `andy asecond arm 40 connected with the slide rod 42. The rod 42 is slidingly supported' in bearings. 43, andis connected at its. opposite end toa collar 45 slidingly supported upon a-cylindrical portion 46 of the roll carrying bed 12. The proper operative` movements are imparted to the collar 45 through a bell-crank lever 48 fulcrumed upon the machine frame at 50 and having one arm 51 operatively connected with a peripheral groove 53 formed in the collar and a secondarm 55 connectedto an operating rod 56. The rod 56 is controlled by an actuating arm 58 :fulcrumed at its lower end upon a shaft 59and having its upper end operatively connected witha rotary path cam, indicated .at 60, and mounted upon the cam shaft 7. In order to vary the angular movements impart-ed to the roll through the path cam, the'rod 56 is adjustably connected with the arm 58 through a curved slide 62 projecting` laterallyV from the lower end of the actuating arm 58 and having' a slot 64 formed therein which receives -an adjustable slide block connected to the rod 56 and serving in the usual manner to adjust the end of the rod with relation to the slide. It will be 4noted from an inspection of Fig'. 2 that the bell-crank 48 is provided with two arms 51, connect-ed to form a yoke and each having a roll engaging in a groove 53 formed-in a collar 45 sliding upon the respective roll carrying bed. With thisconstruction the actuating mechanism serves yto incline both rolls simultaneously and in opposite directions to7 cause the rolls to respectively operateuponright and left shoes.

With theA above construction the roll Vis initially positioned with 4itsy aXis substantially at right angles to the .direction of movement over the shoe sole, and as the roll progresses down one side ofthe shoe sole, it is gradually inclined until the axis "of the roll is substantially*parallel with thatk portion of the ball line which is engaged by the roll when passing fromthe `ball portion ofV the. shoe to the shank. This position ofthe roll is maintained while'operating uponthat side of the shoe and! when approaching the toe at the completion of the leveling opera- Y tion upon one side of the sole the'v rollis gradually straightened after which the preceding cycle of operations is repeated upon the opposite side of the sole. i f

While -it is preferred to employ the specific construction and arrangement of-parts shown zo l and described, it will be understood that this construction and arrangement is not essential except so far as specified in the claims, and may be changed or modiiied without departing from the broader features- 4ing jack, means for changing the relative longitudinal position of the roll and jack, and mechanism for automatically inclining the roll relative to the direction of travel constructed and arranged to position the roll with the axis of rotation substantially parallel to theball line when the roll passes thereover.

2. A sole leveling machine, having, in combination, a leveling roll, a shoe supporting jack, means for changing the relative longitudinal position of the roll and jack, and mechanism for automatically inclining the roll relative to the direction of travel during the continued movement of the roll lengthwise of the shoe sole constructed and arranged to position the roll with the aXis parallel to the ball line when the roll passes thereover.

3. A sole leveling machine, having, in combination, a leveling roll, a shoe supporting jack, mechanism for changing the relative longitudinal position and lateral inclination of the roll and jack, and mechanism for automatically inclining the roll in opposite directions relative to the direction of travel when operating upon opposite sides of a shoe sole constructed and arranged to position the roll with the axis substantially parallel to that portion of the ball line engaged by the roll as it passes thereover.

t. A sole leveling machine, having, in combination, a leveling roll, a shoesupporting jack, means for changing the relative longitudinal position of the roll and jack, a rotary cam, and operative connections between the cam and roll for automatically inclining the roll relative to the direction of travel to position the roll with the axis substantially parallel with the ball line when the roll passes thereover.

5. A sole leveling machine, having, in combination, a leveling roll, a shoe supporting jack, means for oscillating the jack, a roll carrying head, means for reciprocating the roll in the head, and mechanism for automatically inclining the roll relative to the head constructed and arranged to position the roll with the axis parallel to the ball line of the shoe when passing thereover.

6. A sole leveling machine, comprising a roll carrying head, a leveling roll slidingly supported in the head, mechanism for recprocating the roll, a bellcrank lever ulcrumed upon the head, connections between the bellcrank lever and opposite ends of the roll to incline the roll relative to the direction of movement in the head, and mechanism for actuating the bellcrank lever to vary the inclination of the roll relative to the direction of travel. 7 A sole leveling machine, having, in combination, a leveling roll, a shoe supporting jack, means for varying the relative longitudinal position and lateral inclination of the roll and jack, a roll supporting head, means for vibrating the roll in the head` and mechanism for automatically inclining the roll relative tothe direction of travel during the relative longitudinal movement of the roll and jack.

8. A sole leveling machine, comprising a roll carrying head, a yoke slidingly supported at opposite ends in the head, a roll journaled in the yoke, a lever fulcrumed upon the head, connections between opposite ends of the lever and the yoke, means for reciprocating the lever, a bellcrank lever fulcrumed upon the head, and connections between the bellcrank and lever for moving the lever angularly to incline the roll relative to the direction of movement in the head.

ERASTUS E. WINKLEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

' Washington, D.. C. 

